The goal of the nEDM experiment at the Spallation Neutron
Source (SNS) is to search for a neutron electric dipole
moment (EDM) with a sensitivity below 5 x 10^(-28) e-cm
as a signature of Charge-Parity (CP) violation. The
experiment uses spallation neutrons from the SNS at Oak Ridge
National Laboratory that are cooled with superfluid 4He. A
novel 3He co-magnetometer is also a key component of the
experiment in order to limit systematic uncertainties.